患儿，女，3岁，半年来“感冒”反复发作，家长多次自行给予“阿司匹林”、“头孢拉定”、

But for the fact that China ______ also affected by the global financial crisis, we _____ fewer unemployed workers now.  [ ]

A. is; would have

B. were; would have    

C. was; would have had

D. were; would have had

员工档案可以帮助了解到的员工信息有( )。

A．教育

B．培训

C．经验

D．绩效

E．技能

番茄摘心时保留果穗上方2片叶的一个重要目的是（）。

A.降低光合作用

B.防止叶片下方果实日灼

C.促进叶片下方果实着色

D.增加果实重量

怎样进行品系比较试验？

临床上最常见和最具有代表性的急性肾衰是

A．重症肾小球肾炎
B．重症肾盂肾炎
C．重症急性间质性肾炎
D．急性肾小管坏死
E．大量失血